HP 4300tn HP PCL/PJL reference - Printer Job Language Technical Reference Manu - Page 26
PJL Command Syntax and Format, PJL OPMSG DISPLAY, PJL ENTER LANGUAGE
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• The placement of white space in PJL commands depends on its location within the command. Some white space is required and some is optional: • White space is required between the @PJL prefix and the PJL command name, and between the PJL command name and command modifiers. For example: @PJL OPMSG DISPLAY or @PJL ENTER LANGUAGE = personality • If white space is shown in any other place in the command, it is optional (see the examples below). • If white space is not shown between two portions of a command, white space is not allowed. An example is between the optional carriage return and required line feed character that terminate most commands. For clarity, this manual consistently shows white space as one blank space. The PJL language requirements are shown in both examples below: 2-6 PJL Command Syntax and Format EN